What is the Greatest Common Factor of 39020 and 39040?

Greatest common factor (GCF) of 39020 and 39040 is 20.

GCF(39020,39040) = 20

We will now calculate the prime factors of 39020 and 39040, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39020 and 39040.

How to find the GCF of 39020 and 39040?

We will first find the prime factorization of 39020 and 39040. After we will calculate the factors of 39020 and 39040 and find the biggest common factor number .

Step-1: Prime Factorization of 39020

Prime factors of 39020 are 2, 5, 1951. Prime factorization of 39020 in exponential form is:

39020 = 2² × 5¹ × 1951¹

Step-2: Prime Factorization of 39040

Prime factors of 39040 are 2, 5, 61. Prime factorization of 39040 in exponential form is:

39040 = 2⁷ × 5¹ × 61¹

Step-3: Factors of 39020

List of positive integer factors of 39020 that divides 39020 without a remainder.

1, 2, 4, 5, 10, 20, 1951, 3902, 7804, 9755, 19510

Step-4: Factors of 39040

List of positive integer factors of 39040 that divides 39020 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 488, 610, 640, 976, 1220, 1952, 2440, 3904, 4880, 7808, 9760, 19520

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39020 and 39040. The biggest common factor number is the GCF number.
So the greatest common factor 39020 and 39040 is 20.

Also check out the Least Common Multiple of 39020 and 39040